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Re: [N8VEM-S100:1228] Z80/8086/8088: 7805 vs. LM323K

Will do; thanks for the quick reply.  Happy Holidays to all :->.

On Wed, Dec 26, 2012 at 3:12 PM, John Monahan <mon...@vitasoft.org> wrote:
> Yes all those boards really need the higher ampage/better cooling T0-3's.
> Ignore the 7805 on the schematics.
> 7.5V works fine for all my boards, but go to 8V if you like, just burns off
> a little more heat.  With 74LSxx's you are way below the max specs of the
> LM333's
> John
> John Monahan Ph.D
> e-mail: mon...@vitasoft.org
> Text:    mon...@txt.att.net
> -----Original Message-----
> From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com] On
> Behalf Of Paul Birkel
> Sent: Wednesday, December 26, 2012 11:27 AM
> To: n8vem...@googlegroups.com
> Subject: [N8VEM-S100:1227] Z80/8086/8088: 7805 vs. LM323K
> I'm confused, as the S100 Z80 Master CPU parts-list specifies a 7805, yet
> the silkscreen and images show a TO-3 case, and the general board
> description indicates 3A.  These all seem to indicate that a LM323K is the
> intended part.  Is that the case?  (I note that the LM323K has a min. Vin of
> 7.5v ... which seems a bit iffy to me but 8v *is* still higher :->).
> Is the same also true for the 8086 and 8088 S100 boards -- use a LM323K?
> Thanks for your insights and/or experience (for you builders out there).
> -----